The parallelogram
The parallelogram is the convex quadrilateral with opposite parallel sides. Properties Opposite sides are congruent two by two. Opposite angles are congruent and adjacent angles are additional (their sum is equal to 180 degrees). Its diagonals are cut into...
The rhombus
The rhombus is the parallelogram with two consecutive congruent sides. Because the rhombus is a particular parallelogram, all the properties of the parallelogram are also valid for the rhombus. Properties all sides are congruent; the diagonals are...
The square
The square is the regular polygon with four sides. It is a particular case of rectangle (rectangle with equal adjacent sides) and rhombus (rhombus with right angles). Properties: the opposite sides are parallel; all sides are congruent; all angles are right;...
Camille Ressu painting – “Aise”
Image description The image of “Aișei” reproduced after Camille Ressu highlights a young woman in the foreground, in profile, sitting contemplatively on the edge of the bed. The hair hidden and discreetly caught under the thin veil is textured with wavy lines....
Oina
Image description Historical data Documentary attested in 1364, oina was originally a pastoral game played by shepherds, but would become after centuries the national sport of Romania Bibliography 1. The education reform initiated by Spiru Haret in 1898, would...
The parachute
Image description At the top, with the texture of embossed dots we can see the part of the canvas called the veil. The three embossed lines that descend from the parachute to the man are the wires that keep him connected to the canvas. At the bottom we can see...
Passenger ship
Image description The image shows a large passenger ship, mechanically propelled by an engine, equipped with multiple multi-storey passenger cabins, for the transport of a very large number of people, viewed in profile and directed to the left. The ship, also called...
Yacht – view from above
Image description The image shows a luxury ship, small to medium sized, mechanically propelled by an engine, called a yacht, viewed from above and directed to the left. The yacht is a vessel that carries a small number of passengers on board, has a deck and cabins, is...
Launch boat
Image description The image shows a small boat, set in motion by an engine, directed to the left, called a launch, a speedboat or a motorboat. The boat is a light and fast boat, used to transport people or goods, often used in various operations near a port, such as:...
Fluid wagon
Image description The image shows from side a hopper wagon assigned for the freight trains, intended for the transport of liquids, respectively, petroleum products such as: diesel, gasoline, fuel oil, crude oil. The wagon, also known as the rail tanker, is represented...
Coal hopper wagon
Image description The image shows from side an open hopper wagon assigned for the freight trains, intended for the transport of coal. The wagon is represented in the shape of an embossed and elongated rectangle. At its base are two pairs of iron wheels, from the side...
Grain hopper wagon
Image description The image shows from side a hopper wagon assigned for the freight trains, intended for the transport of cereals, such as: rye, corn, barley, oats, wheat, raw rice, sunflower seeds, soybeans. The wagon is represented in the shape of an embossed...
Double Decker wagon inside, view from above
Image description The image above shows from above the inside of the first floor of a bilevel car or a double decker train wagon, a type of railcar that has extra space, increasing passenger capacity, with two levels instead of one, respectively ground floor and first...
Double Decker wagon
Image description The image above shows in profile a bilevel car or a double decker train wagon, a type of railcar that has extra space, increasing passenger capacity, with two levels instead of one, respectively ground floor and first floor, with a high height from...
Berth train car inside – view from above
Image description The first image shows, seen from above, a segment from the inside of a sleeping car or a berth wagon in detail, provided with sleeping places specially arranged in cabins, called, berths. The image below shows the entire berth car, viewed from above....
Berth train car
Image description The image shows from side a berth train wagon or a sleeping car, consisting of a metal box, lined on the inside with wood, being represented in the form of a horizontal rectangle, elongated and embossed. In the image above the wagon is represented...
Passenger train wagon
Image description The image shows from side a passenger train wagon, consisting of a metal box, equipped with sleeping places specially arranged in cabins, called, berths, lined on the inside with wood, and represented in the form of a horizontal rectangle, elongated...